HealthyPhase 1NCT00960570
Drug-Drug Interaction Study Between Fenofibric Acid and Efavirenz
A Phase 1 study testing Efavirenz 600 mg and Fenofibric Acid in people with Healthy, run by Mutual Pharmaceutical Company, Inc..
Trial summary
Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP 2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects. Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- Efavirenz 600 mg and Fenofibric Acid
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- No sites listed yet
- Study dates
- Feb 2008to Mar 2008
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy adults 18-45 years of age
- Non-smoking
- Non-pregnant (post-menopausal, surgically sterile or using effective contraceptive measures)
- Body mass index (BMI) less than 30
- Medically healthy on the basis of medical history and physical examination
- Hemoglobin > or = to 12g/dL
- Completion of the screening process within 28 days prior to dosing
- Provision of voluntary written informed consent
Who cannot join
- Recent participation (within 28 days) in other research studies
- Recent significant blood donation or plasma donation
- Pregnant or lactating
- Test positive at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HbsAg), or hepatitis C virus (HCV)
- Recent (2-year) history or evidence of alcoholism or drug abuse
- History or presence of significant cardiovascular, pulmonary, hepatic, gallbladder or biliary tract, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, or psychiatric disease
- Subjects who have used any drugs or substances known to inhibit or induce cytochrome (CYP) P450 enzymes and/or P-glycoprotein (P-gp) within 28 days prior to the first dose and throughout the study
- Drug allergies to fenofibric acid or efavirenz
About this study
Official title: An Open-Label Drug Interaction Study to Investigate the Effects of Steady State Fenofibric Acid on the Single-Dose Pharmacokinetics of Efavirenz in Healthy Volunteers
Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP 2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects.
Read the detailed description
Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP 2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects. On study Day 1 after a fast of at least 10 hours, thirty healthy, non-smoking, non-obese, non-pregnant adult volunteers between the ages of 18 and 45 will be given one oral dose of efavirenz (1 x 600 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 120 hours post-dose at times sufficient to adequately define the pharmacokinetics of efavirenz. A 21 day washout period will be completed after the first dose of efavirenz on Day 1. On Days 22 through 30, all subjects will receive a single oral dose of fenofibric acid (1 x 105 mg tablet) in the morning without regard to meals. On the morning of Day 31 after a fast of at least 10 hours, all study participants will receive co-administered single oral doses of efavirenz (1 x 600 mg tablet) and fenofibric acid (1 x 105 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 120 hours post-dose at times sufficient to adequately determine the pharmacokinetics of efavirenz. A further goal of this study is to evaluate the safety and tolerability of this regimen in healthy volunteers. Subjects will be monitored throughout participation in the study for adverse reactions to the study drug and/or procedures. Vital signs (seated blood pressure and pulse) will be measured prior to dosing and at approximately 1, 2, 3 and 5 hours post-dose on Days 1 and 31 and prior to dosing and at approximately 1, 2 and 4 hours post-dose on Day 22 to coincide with peak plasma concentrations of both efavirenz and fenofibric acid. All adverse events whether elicited by query, spontaneously reported, or observed by clinic staff will be evaluated by the Investigator and reported in the subject's case report form.
- Conditions
- Healthy
- Being tested
- Efavirenz 600 mg, Fenofibric Acid
- Keywords
- healthy, adult, efavirenz, fenofibric acid, blood levels
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Efavirenz 600 mgDrug
Efavirenz 600 mg administered as a single oral dose on the morning of Day 1.
Efavirenz 600 mgDrug
Co-administered single oral doses of Efavirenz 600 mg and Fenofibric Acid 105 mg on Day 31.
Fenofibric AcidDrug
Co-administered single oral doses of Efavirenz 600 mg and Fenofibric Acid 105 mg on Day 31.
| Study group | Role | What they receive |
|---|---|---|
| Efavirenz Alone | Active comparator | Baseline Efavirenz pharmacokinetics. Receives: Drug: Efavirenz 600 mg |
| Efavirenz with Steady State Fenofibric Acid | Experimental | Efavirenz pharmacokinetics in the presence of steady state Fenofibric Acid. Receives: Drug: Efavirenz 600 mg; Drug: Fenofibric Acid |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Plasma Concentration (Cmax) of Efavirenz
The maximum or peak concentration that efavirenz reaches in the plasma.
Measured: serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration.
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]
The area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule for efavirenz.
Measured: serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration
Area Under the Concentration Versus Time Curve From Time 0 Extrapolated to Infinity [AUC(0-∞)]
The area under the plasma concentration versus time curve from time 0 to infinity. [AUC(0-∞)] was calculated as the sum of AUC(0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant for efavirenz.
Measured: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Aug 2009 (estimated)
- Study startFeb 2008
- Primary completionMar 2008
- Study completionMar 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mutual Pharmaceutical Company, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Anthony R Godfrey, Pharm. D, Principal investigator, PRACS Insitute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00960570
- Sponsor's protocol ID
- MPC-028-08-1018
- Other IDs
- R08-0056
- Status last verified
- Jul 2012
- First submitted
- 14 Aug 2009
- Last updated
- 7 Aug 2012
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Aug 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open-Label Drug Interaction Study to Investigate the Effects of Steady State Fenofibric Acid on the Single-Dose Pharmacokinetics of Efavirenz in Healthy Volunteers
- ClinicalTrials.gov ID
- NCT00960570
- Acronym / sponsor ID
- MPC-028-08-1018
- Conditions
- Healthy
- Keywords
- healthy, adult, efavirenz, fenofibric acid, blood levels
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Mutual Pharmaceutical Company, Inc.Industry (pharma, biotech, devices)
- Study start
- Feb 2008
- Primary completion
- Mar 2008 (actual)
- Study completion
- Mar 2008 (actual)
- First posted
- 18 Aug 2009 (estimated)
- Results
- Posted 14 Oct 2009
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP 2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects.
Detailed description
Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP 2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects. On study Day 1 after a fast of at least 10 hours, thirty healthy, non-smoking, non-obese, non-pregnant adult volunteers between the ages of 18 and 45 will be given one oral dose of efavirenz (1 x 600 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 120 hours post-dose at times sufficient to adequately define the pharmacokinetics of efavirenz. A 21 day washout period will be completed after the first dose of efavirenz on Day 1. On Days 22 through 30, all subjects will receive a single oral dose of fenofibric acid (1 x 105 mg tablet) in the morning without regard to meals. On the morning of Day 31 after a fast of at least 10 hours, all study participants will receive co-administered single oral doses of efavirenz (1 x 600 mg tablet) and fenofibric acid (1 x 105 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 120 hours post-dose at times sufficient to adequately determine the pharmacokinetics of efavirenz. A further goal of this study is to evaluate the safety and tolerability of this regimen in healthy volunteers. Subjects will be monitored throughout participation in the study for adverse reactions to the study drug and/or procedures. Vital signs (seated blood pressure and pulse) will be measured prior to dosing and at approximately 1, 2, 3 and 5 hours post-dose on Days 1 and 31 and prior to dosing and at approximately 1, 2 and 4 hours post-dose on Day 22 to coincide with peak plasma concentrations of both efavirenz and fenofibric acid. All adverse events whether elicited by query, spontaneously reported, or observed by clinic staff will be evaluated by the Investigator and reported in the subject's case report form.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Efavirenz Alone | Active comparator | Drug: Efavirenz 600 mgBaseline Efavirenz pharmacokinetics. |
| Efavirenz with Steady State Fenofibric Acid | Experimental | Drug: Efavirenz 600 mg, Drug: Fenofibric AcidEfavirenz pharmacokinetics in the presence of steady state Fenofibric Acid. |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (8 listed)
- Healthy adults 18-45 years of age
- Non-smoking
- Non-pregnant (post-menopausal, surgically sterile or using effective contraceptive measures)
- Body mass index (BMI) less than 30
- Medically healthy on the basis of medical history and physical examination
Key exclusion criteria (8 listed)
- Recent participation (within 28 days) in other research studies
- Recent significant blood donation or plasma donation
- Pregnant or lactating
- Test positive at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HbsAg), or hepatitis C virus (HCV)
- Recent (2-year) history or evidence of alcoholism or drug abuse
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Efavirenz 600 mgEfavirenz 600 mg administered as a single oral dose on the morning of Day 1. | Drug | Efavirenz Alone |
| Efavirenz 600 mgCo-administered single oral doses of Efavirenz 600 mg and Fenofibric Acid 105 mg on Day 31. | Drug | Efavirenz with Steady State Fenofibric Acid |
| Fenofibric AcidCo-administered single oral doses of Efavirenz 600 mg and Fenofibric Acid 105 mg on Day 31. | Drug | Efavirenz with Steady State Fenofibric Acid |
Primary outcome
Maximum Plasma Concentration (Cmax) of Efavirenz
Time frame: serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration.
The maximum or peak concentration that efavirenz reaches in the plasma.
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]
Time frame: serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration
The area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule for efavirenz.
Area Under the Concentration Versus Time Curve From Time 0 Extrapolated to Infinity [AUC(0-∞)]
Time frame: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration
The area under the plasma concentration versus time curve from time 0 to infinity. [AUC(0-∞)] was calculated as the sum of AUC(0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant for efavirenz.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Aug 2012.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Anthony R Godfrey, Pharm. D principal investigator
PRACS Insitute
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Efavirenz 600 mg and Fenofibric Acid in people with Healthy, run by Mutual Pharmaceutical Company, Inc..
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Aug 2012. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 14 Oct 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Maximum Plasma Concentration (Cmax) of Efavirenz (time frame: serial pharmacokinetic blood samples drawn prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96 and 120 hours after dose administration.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Aug 2012.